Apparatus for pressure treating of textiles



ay 23, 1%? L. G. GORODIS'SKY ETAL 3,320,773

APPARATUS FDR PRESSURE TREATING 0F TEXTILES Filed July 27, 1964 5 Sheets-Sheet 1 Fi i y 23, 1967 G. GORODISSKY ETAL 3,320,776

APPARATUS FOR PRESSURE TREATING OF TEXTILES Filed July 27, 1964 5 Sheets$heet 2 y 3, 1967 L. G. GORODISSKY ETAL 3,320,776

APPARATUS FOR PRESSURE TREATING OF TEXTILES Filed July 27, 1964 5 Sheets-Sheet 5 0 $1 J4 O Q 7 '5 O R t N I Q o I K M I a /7 o 4 j 0 is I: o 5 o O O QC) H63 United States Patent 3,320,776 APPARATUS FOR PRESSURE TREATING OF TEXTILES Leonid Grigorjevich Gorodissky and Nickolai Tikhonovich Romanov, both of Moscow, U.S.S.R., assiguors to Tsentralny Nauchno-Issledovatelsky Institute Shelkovoi Promyshlennosti, Moscow, U.S.S.R.

Filed July 27, 1964, Ser. No. 385,355 4 Claims. (Cl. 685) The present invention relates to finishing equipment, and more particularly, to apparatus for pressure treating of textiles.

The known finishing equipment comprises a pressure chamber provided with holes for the inlet and outlet of the fabric being treated; two housings, mounted respectively at the inlet and outlet of the chamber, and in each of which there are provided two rolls coated with an elastic material, said rolls being adapted to rotate in opposite directions to pass the fabric; sealing members, arranged in each housing to envelop the rolls; and a device to supply a working medium under pressure into the housmg.

However, such apparatus have a disadvantage consisting in that the sealing members and rolls are pressed against each other by the pressure in the chamber and, in some cases, by an additional means, which not only results in a constant wear of these members, but also increases the torsional resistance of the rotating rolls. This, in turn, detrimentally affects the quality of the material being treated.

We have established that the above-mentioned disadvantage can be eliminated by means of an apparatus comprising a pressure chamber provided with two holes for the inlet and outlet of the fabric, respectively; two housings, each respectively mounted at the inlet and outlet of the chamber, each of said housings having two rolls provided with an elastic coating, said rolls being adapted to rotate in opposite directions to pass the fabric being treated; rings, arranged in each housing so as to be displaceable together with the rolls in a direction normal to the direction of movement of the fabric, said rings embracing the rolls and sealing the gap between each roll and said housing; and a means to supply the working medium under pressure into each of the housings.

An object of the present invention is to maintain a high pressure during the Whole process of treating the fabric.

Another object of the invention is to maintain a constant pressure when passing seams and wrinkles of the fabric through the rolls.

A further object of the invention is to improve the quality of the fabric treated.

In accordance with the above-mentioned and other objects, the invention is based on a novel combination of parts and elements. It is to be understood that when realizing the invention as described here and below, alterations and modifications may be made without departing from the spirit and scope of the present invention.

For a better understanding of the invention, an embodiment thereof is described hereafter with reference to the appended drawings, in which:

FIG. 1 is a diagram of the apparatus complete with the the sealing members;

FIG. -2 is a longitudinal section view of the sealing members; and

FIG. 3 is a cross-sectional view of the sealing members.

The apparatus comprises a pressure chamber 1 with two housings mounted respectively at the inlet and outlet of the pressure chamber 1. In each of said housings are mounted two rolls 4, 5 provided with elastic, heat-resistant coatings 6 for passing the fabric 2; rings 7, 8, embrace said ice rolls and insuring throttling of the working medium; and a pump 9 is coupled to piping 10 to supply the working medium and to piping 11 for drawing it off.

'Each pair of rolls and rings constitutes a sealing member in the apparatus, designed to maintain a constant pressure therein.

Rolls 4 and 5 are mounted in roller bearings 12, 13, respectively (FIG. 2), which are supported by suspension arms 14, 15, adjustable in length and secured on journals of two shafts 16, 17, whereby when seams pass between the rolls 4 and 5, the later are moved apart by the seams while at the same time being tightly pressed against the fabric, thereby preventing any changes of pressure. On the shafts 16, 17 are also mounted the rings 7, 8 (FIG. 3).

The journals of the rolls 4, 5 are sealed with stuffing boxes, consisting of sleeves 18, 19, packing 20, 21, and pressure bushings 22, 23. The sleeves 18, 19 are sealed with elastic cups 24.

The journals of the shafts 16, 17 are also sealed with packing boxes, consisting of sleeves 25, 26, stuflings 27, 28, and pressure bushings 29, 30.

The rolls 4, 5 are interconnected by means of a gearing, consisting of two gears, namely; gear 31 on the roll 4 and a similar one (not shown in the drawings) on the roll 5, said rolls being driven via an equalizing clutch (not shown in the drawings).

End surfaces of the rings 7 and 8 are sealed with rubber linings 32.

The coatings 6 are secured on the rolls 4, 5 in such a manner as to seal the gap between the end surfaces of said rolls and the internal wall of the housing.

Sealing between the housing and the ring is provided by heat-resistant rubber linings 33 (FIG. 3) that also contribute to cushioning of the roll-ring units when passing seams and wrinkles of the fabric.

Members 34 and 36 are adapted to guide and straighten the fabric during its passage through the apparatus.

The apparatus operates as follows:

After passing members 34 and 36 (FIG. '3), the fabric 2 passes in straightened condition between the rolls 4, 5, and is then supplied by said rolls to the pressure chamber 1. A working liquid, for example, a dye solution, is supplied under pressure by the pump 9 into the piping 10. Upon passing through gaps between the rolls 4, 5 and rings 7, 8, the liquid loses its pressure, and, when emerging at atmospheric pressure, the liquid drawn oif through the piping 11, and is finally returned to the pump 9. The rolls 4, 5 and rings 7, 8 are arranged in relation to each other in such a manner as to provide a prescribed gap or clearance between them, to offer a resistance to the working liquid passing from a pressure up to 5 atms. in the chamber to atmospheric pressure above the rolls. The rolls 4, 5 are tightly pressed against each other, thus preventing the working medium from leaking between said rolls even at the time when seams of the fabric are passing between them.

To avoid heat losses and superheating of the working liquid in the apparatus, the latter is provided with heatinsulating flanges 35 that are made of a low heat-conducting material.

The chamber 1 is optionally provided with an additional separate inlet as shown in dotted outline in FIG. 1 for the supply of additional medium for numerous purposes such as heating, cooling, stabilizing etc.

What is claimed is:

1. Apparatus for treating fabric under pressure comprising: a pressure chamber provided with two holes for fabric inlet and outlet; two housings arranged respectively at the inlet and the outlet of said chamber; a pair of rolls mounted in each of said housings for relative movement )wards and away from each other, the rolls being adapted rotate in opposite directions to pass the fabric through lid pressure chamber for treatment; -a ring for each roll mounted in an associated housing in spaced relation there- 'ith, each of said rings enveloping the respective roll in lose fitting relation; means supporting said rings for conint movement with their respective rolls and for adlsting the relative position between each of said rolls and s respective ring; means for sealing the spaces betweenlid rings and the respective housing, and effective to iaintain such seal upon conjoint movement of said rolls nd their respective rings, as well as during adjustment of ie relative position of each roll and its associatedvring; nd means for supplying a working medium under preslre into said housings and pressure chamber, and due )which pressure said rolls are urged agaist one another, 1e movable support of the rolls and rings enabling their onjoint movement in the event of variation of thickness f the fabric.

2. Apparatus according to claim 1, in which said means upporting said rings and rolls for conjoint movement 'hile enabling adjustment of their relative positions com- 4, 2 prises: shafts rotatably mounted in the housing and supporting said rings, and suspension arms, adjustable in length, mounted on said shafts and rotatably supporting said rolls.

3. Apparatus according to claim 2, in which the rolls include journals and means sealably mounting the journals in the respective housing.

4. Apparatus according to claim 1, in which the means for sealing the spaces between the rings and their respective housing, comprises elastic linings secured to said rings at the ends thereof and further elastic linings on the housing in peripheral contact with respective rings.

References Cited by the Examiner UNITED STATES PATENTS 2,591,069 4/1952 Hodge. 2,974,512 3/1961 Carter 68-5 3,046,773 7/1-962 'Healey 6822 3,083,556 4/1963 Leonard 68-5 3,255,616 6/il966 Rust 68--5 IRVING BU'NEVICH, Primary Examiner. 

1. APPARATUS FOR TREATING FABRIC UNDER PRESSURE COMPRISING: A PRESSURE CHAMBER PROVIDED WITH TWO HOLES FOR FABRIC INLET AND OUTLET; TWO HOUSINGS ARRANGED RESPECTIVELY AT THE INLET AND THE OUTLET OF SAID CHAMBER; A PAIR OF ROLLS MOUNTED IN EACH OF SAID HOUSINGS FOR RELATIVE MOVEMENT TOWARDS AND AWAY FROM EACH OTHER, THE ROLLS BEING ADAPTED TO ROTATE IN OPPOSITE DIRECTIONS TO PASS THE FABRIC THROUGH SAID PRESSURE CHAMBER FOR TREATMENT; A RING FOR EACH ROLL MOUNTED IN AN ASSOCIATED HOUSING IN SPACED RELATION THEREWITH, EACH OF SAID RINGS ENVELOPING THE RESPECTIVE ROLL IN CLOSE FITTING RELATION; MEANS SUPPORTING SAID RINGS FOR CONJOINT MOVEMENT WITH THEIR RESPECTIVE ROLLS AND FOR ADJUSTING THE RELATIVE POSITION BETWEEN EACH OF SAID ROLLS AND ITS RESPECTIVE RING; MEANS FOR SEALING THE SPACES BETWEEN SAID RINGS AND THE RESPECTIVE HOUSING, AND EFFECTIVE TO MAINTAIN SUCH SEAL UPON CONJOINT MOVEMENT OF SAID ROLLS AND THEIR RESPECTIVE RINGS, AS WELL AS DURING ADJUSTMENT OF THE RELATIVE POSITION OF EACH ROLL AND ITS ASSOCIATED RING; AND MEANS FOR SUPPLYING A WORKING MEDIUM UNDER PRESSURE INTO SAID HOUSINGS AND PRESSURE CHAMBER, AND DUE TO WHICH PRESSURE SAID ROLLS ARE URGED AGAINST ONE ANOTHER, THE MOVABLE SUPPOT OF THE ROLLS AND RINGS ENABLING THEIR CONJOINT MOVEMENT IN THE EVENT OF VARIATION OF THICKNESS OF THE FABRIC. 